import router from './router'
import store from './store'
// import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

router.beforeEach(async (to, from, next) => {
	// start progress bar
	NProgress.start()

	// set page title
	document.title = getPageTitle(to.meta.title)

	// determine whether the user has logged in
	const hasToken = getToken()
	if (hasToken) {
		if (to.path === '/login') {
			// if is logged in, redirect to the home page
			next({ path: '/' })
			NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
		} else {
			// determine whether the user has obtained his permission roles through getInfo
			const roles = store.getters.roles
			const addRoutes = store.getters.permission_addRoutes
			const hasRoles = roles && roles.length > 0
			const hasAddRoutes = addRoutes && addRoutes.length >= 1
			if (hasRoles) {
				if (hasAddRoutes) {
					next()
				} else {
					const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
					router.addRoutes(accessRoutes)
					next({ ...to, replace: true })
				}
			} else {
				await store.dispatch('user/resetToken')
				next(`/login?redirect=${to.path}`)
				NProgress.done()
			}
			// if (hasRoles) {
			// 	next()
			// } else {
			// 	try {
			// 		// get user info
			// 		// note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
			// 		const { roles } = await store.dispatch('user/getInfo')
			// 		// generate accessible routes map based on roles
			// 		const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
			// 		// dynamically add accessible routes
			// 		router.addRoutes(accessRoutes)

			// 		// hack method to ensure that addRoutes is complete
			// 		// set the replace: true, so the navigation will not leave a history record
			// 		next({ ...to, replace: true })
			// 	} catch (error) {
			// 		// remove token and go to login page to re-login
			// 		await store.dispatch('user/resetToken')
			// 		Message.error(error || 'Has Error')
			// 		next(`/login?redirect=${to.path}`)
			// 		NProgress.done()
			// 	}
			// }
		}
	} else {
		/* has no token*/

		if (whiteList.indexOf(to.path) !== -1) {
			// in the free login whitelist, go directly
			next()
		} else {
			// other pages that do not have permission to access are redirected to the login page.
			next(`/login?redirect=${to.path}`)
			NProgress.done()
		}
	}
})

router.afterEach(() => {
	// finish progress bar
	NProgress.done()
})
